Sea level and climate changes during OIS 5e in the Western Mediterranean



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Bardají Azcárate, Teresa and Goy Goy, José Luis and Hillaire-Marcel, Claude and Dabrio, Cristino J. and Cabero del Río, Ana and Ghaleb, B. and Silva Barroso, Pablo Gabriel and Lario, Javier (2009) Sea level and climate changes during OIS 5e in the Western Mediterranean. Geomorphology, 104 (1-2). pp. 22-37. ISSN 0169-555X

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Palaeontological, geomorphological and sedimentological data supported by isotopic dating on Oxygen
Isotopic Stage (OIS) 5e deposits from the Spanish Mediterranean coast, are interpreted with the aim of
reconstructing climatic instability in the Northern Hemisphere. Data point to marked climatic instability
during the Last Interglacial (OIS 5e), with a change in meteorological conditions and, consequently, in the
sedimentary environment. The oolitic facies generated during the first part of OIS 5e (ca. 135 kyr) shift into
reddish conglomeratic facies during the second part (ca. 117 kyr). Sea surface Temperature (SST) and salinity
are interpreted mainly on the basis of warm Senegalese fauna, which show chronological and spatial
differential distribution throughout the Western Mediterranean. Present hydrological and meteorological
conditions are used also as modern analogues to reconstruct climatic variability throughout the Last
Interglacial, and this variability is interpreted within the wider framework of the North Atlantic record. All
the available data indicate an increase in storminess induced by an increase in the influence of northwesterlies,
a slight drop of SST in the northern Western Mediterranean, and an important change in
meteorological conditions at the end of OIS 5e (117 kyr). These changes correlate well with the decrease in
summer insolation and with the climatic instability recorded in North Atlantic high latitudes.

Item Type:Article
Uncontrolled Keywords:Sedimentary facies; Senegalese fauna; Meteorological changes; Sea surface conditions; Surface currents; Spain
Subjects:Sciences > Geology > Stratigraphic geology
ID Code:11177
Deposited On:16 Sep 2010 07:45
Last Modified:11 Dec 2018 08:42

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